INITIAL RESEARCH ON THE BIOMECHANICAL FEATURES OF THE TRIANGLE FIBROCARTILAGE IN HUMAN WRIST

Fibrocartilage in the wrist joint is a structure common to both distal radioulnar and wrist joint. It works to cache direct pressure between head of ulna and wrist bones and to disperse the load. The structure is susceptive to acute and chronic strain due to the stretch, pressure and shearing during movement. It is significant for further research on physiological function and injury mechanism of the fibrocartilage to obtain the biomechanical parameters and the relevant constitutive equation of it

GPT4Table: Can Large Language Models Understand Structured Table Data? A Benchmark and Empirical Study

Large language models (LLMs) are becoming attractive as few-shot reasoners to solve Natural Language (NL)-related tasks. However, there is still much to learn about how well LLMs understand structured data, such as tables. While it is true that tables can be used as inputs to LLMs with serialization, there is a lack of comprehensive studies examining whether LLMs can truly comprehend such data. In this paper, we try to understand this by designing a benchmark to evaluate the structural understanding capabilities (SUC) of LLMs. The benchmark we create includes seven tasks, each with its own unique challenges, \eg, cell lookup, row retrieval, and size detection. We conduct a series of evaluations on GPT-3.5 and GPT-4. We find that the performance varied depending on several input choices, including table input format, content order, role prompting, and partition marks. Drawing from the insights gained through the benchmark evaluations, we propose \textit{self-augmentation} for effective structural prompting, such as critical value / range identification using LLMs' internal knowledge. When combined with carefully chosen input choices, these structural prompting methods lead to promising improvements in LLM performance on a variety of tabular tasks, \eg, TabFact($\uparrow2.31\%$), HybridQA($\uparrow2.13\%$), SQA($\uparrow2.72\%$), Feverous($\uparrow0.84\%$), and ToTTo($\uparrow5.68\%$). We believe that our benchmark and proposed prompting methods can serve as a simple yet generic selection for future research.Comment: This paper has been accepted as a full paper at WSDM 202

KINEMATICAL RESEARCH ON 407C OF ELITE CHINESE MALE 3-M SPRINGBOARD DIVERS

INTRODUCTION: Diving is a dominant event of China in the 21th century. This research is to find some common features in kinematical parameters of elite diving athletes and thus to serve athlete training

Electrokinetic delivery of persulfate to remediate PCBs polluted soils: Effect of different activation methods

Persulfate-based in-situ chemical oxidation (ISCO) for the remediation of organic polluted soils has gained much interest in last decade. However, the transportation of persulfate in low-permeability soil is very low, which limits its efficiency in degrading soil pollutants. Additionally, the oxidation-reduction process of persulfate with organic contaminants takes place slowly, while, the reaction will be greatly accelerated by the production of more powerful radicals once it is activated. Electrokinetic remediation (EK) is a good way for transporting persulfate in low-permeability soil. In this study, different activation methods, using zero-valent iron, citric acid chelated Fe²⁺, iron electrode, alkaline pH and peroxide, were evaluated to enhance the activity of persulfate delivered by EK. All the activators and the persulfate were added in the anolyte. The results indicated that zero-valent iron, alkaline, and peroxide enhanced the transportation of persulfate at the first stage of EK test, and the longest delivery distance reached sections S4 or S5 (near the cathode) on the 6th day. The addition of activators accelerated decomposition of persulfate, which resulted in the decreasing soil pH. The mass of persulfate delivered into the soil declined with the continuous decomposition of persulfate by activation. The removal efficiency of PCBs in soil followed the order of alkaline activation > peroxide activation > citric acid chelated Fe²⁺ activation > zero-valent iron activation > without activation > iron electrode activation, and the values were 40.5%, 35.6%, 34.1%, 32.4%, 30.8% and 30.5%, respectively. The activation effect was highly dependent on the ratio of activator and persulfate

Complexity Leadership Theory: A Perspective for State-Owned Enterprises in Ghana

This article explores the bureaucratic leadership which has bedeviled state owned enterprises for many decades and how its efficacy  can be in the 21st century business environment where there uncertainty and chaos. In some manufacturing and state owned enterprises, these theories of traditional bureaucratic leadership approach and decision making strategies persist even though technology and innovation supposed to have taken the greater part of the way of thinking and making organizational objectives achieved through modern way of managing business entities. Thus, SOEs are critical to the economic activity in emerging market countries. The creation of SOEs was meant to provide employment, meet social and political needs, and operate in the sectors of the economy that were of strategic importance to the state. The problem is to offer alternatives of bureaucratic structure that has been used in SOEs and how best to use these alternative theories in practical terms. The pace of change confronting organisations today has added complexity to the organisational landscape and now calls for more flexible and adaptive leadership. Adaptive leaders are able to work more effectively in the unstable global business environment and are also able to adopt a proactive approach in order to keep abreast of the increasing stakeholder pressures in the enterprises. However, inadequate applicability of traditional leadership models have indicated the need to develop new leadership models to solve complex organisational challenge. Hence complexity leadership approach seeks to combine these dynamics to the bureaucratic hierarchies in order to explain the way informal organisational dynamics function properly and also to describe how theses valuable adaptive functions can be promoted to better the operations of SOEs in Ghana.

Optimization Method for the Chiller plant of Central Air-conditioning System Parameters on Association Rules Analysis for Energy Conservation

More than 50% of the total energy consumption of central air-conditioning system is consumed by the central cooling plants. It is crucial to optimize central cooling plants operation parameter settings which is also significant for improving its operating efficiency, reducing the energy consumption, and promoting the overall energy saving of air-conditioning systems. The regular methods of central cooling plants optimization can be divided into three categories: engineering method, mechanism modeling and artificial intelligence modeling. In recent years, with the development of the internet of things, the monitoring and control platform for air-conditioning system provides data mining with mass ground truth data for central cooling plants optimization. Compared with the other methods, the data mining method for optimizing the key operation parameters of central cooling plants takes the advantages of simple, wide applicable and practical. In this paper, the association rule data mining method is proposed to optimize the operation parameters of the whole central cooling plants from the ground truth data. The central cooling plants in a shopping mall in Guangzhou is taken as the case study. Through historical data processing, like data cleaning, selection of optimization parameters, discrete transform of data and so on, the association rules are mined between the optimal energy efficiency Ratio and the running parameters of the central cooling plants under different operating conditions by Apriori algorithm. Finally, from the simulation results, it’s shown that by the association rules, the total energy consumption of the whole central cooling plants under two different working conditions are reduced 13.33% and 11.6% less than by the original operational parameters in the transition season and summer respectively. The simulation results verify the validity of the mining rules. This method excavates the energy saving potential of central cooling plants from the point of view of engineering practice, which is suitable for the central cooling plants which has accumulated a large amount of operation data and provides a reference for the energy-saving optimization operation of central cooling plants

Insecticidal Activity of the Whole Grass Extract of Typha angustifolia and its Active Component against Solenopsis invicta

In this study, the toxicity of whole grass Typha angustifolia L. extract was determined in vitro by a “water tube” method to investigate the bioactivity of T. angustifolia L. against micrergates of red imported fire ants. Results indicated that the ethanol extract exhibited toxicity against the micrergates of red imported fire ants. Mortality was 100% after the micrergates were treated with 2000 mg/mL of ethanol extract for 72 h. After 48 h of treatment, LC50 values of ethanol extract and petroleum ether fraction were 956.85 and 398.73 mg/mL, respectively. After 120 h, LC50 values of the same substances were 271.23 and 152.86 mg/mL, respectively. A bioactivity-guided fractionation and chemical investigation of petroleum ether fraction yielded an active component (compound 1). NMR spectra revealed that the structure of compound 1 corresponded to 3β-hydroxy-25-methylenecycloartan-24-ol. Compound 1 also exhibited strong toxicity against the micrergates of red imported fire ants, thereby eradicating all of the tested ants treated with 240 mg/mL for 120 h. LC50 values of compound 1 at 48 and 120 h were 316.50 and 28.52 mg/mL, respectively

THE DYNAMIC EXPERIMENTAL STUDY ON ABSORBERS OF THE RECURVE BOW

We measured the frequency and amplitude of a bow’s vibration. By changing the resonance characteristic we hope to optimize the bow for training and competition

TACE with Ar-He Cryosurgery Combined Minimal Invasive Technique for the Treatment of Primary NSCLC in 139 Cases

Background and objective TACE, Ar-He target cryosurgery and radioactive seeds implantation are the mainly micro-invasive methods in the treatment of lung cancer. This article summarizes the survival quality after treatment, the clinical efficiency and survival period, and analyzes the advantages and shortcomings of each methods so as to evaluate the clinical effect of non-small cell lung cancer with multiple minimally invasive treatment. Methods All the 139 cases were nonsmall cell lung cancer patients confirmed by pathology and with follow up from July 2006 to July 2009 retrospectively, and all of them lost operative chance by comprehensive evaluation. Different combination of multiple minimally invasive treatments were selected according to the blood supply, size and location of the lesion. Among the 139 cases, 102 cases of primary and 37 cases of metastasis to mediastinum, lung and chest wall, 71 cases of abundant blood supply used the combination of superselective target artery chemotherapy, Ar-He target cryoablation and radiochemotherapy with seeds implantation; 48 cases of poor blood supply use single Ar-He target cryoablation; 20 cases of poor blood supply use the combination of Ar-He target cryoablation and radiochemotheraoy with seeds implantation. And then the pre- and post-treatment KPS score, imaging data and the result of follow up were analyzed. Results The KPS score increased 20.01 meanly after the treatment. Follow up 3 years, 44 cases of CR, 87 cases of PR, 3 cases of NC and 5 cases of PD, and the efficiency was 94.2%. Ninety-nine cases of 1 year survival (71.2%), 43 cases of 2 years survival (30.2%), 4 cases with over 3 years survival and the median survival was 19 months. Average survival was (16±1.5)months. There was no severe complications, such as spinal cord injury, vessel and pericardial aspiration. Conclusion Minimally invasive technique is a highly successful, micro-invasive and effective method with mild complications. To non-small cell lung cancer, we can improve the middle and long term clinical effect by using the different combination of multiple minimally invasive treatments according to the patient's condition